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多孔介质期刊
影响因子: 1.49 5年影响因子: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v17.i5.50
pages 431-438

NEURAL-NETWORK METAMODELLING FOR THE PREDICTION OF THE PRESSURE DROP OF A FLUID PASSING THROUGH METALLIC POROUS MEDIUM

Eddy EL Tabach
PRISME Laboratory, University of Orleans, 63 Avenue de Lattre de Tassigny, 18000 Bourges, France
Nicolas Gascoin
PRISME Laboratory, INSA-Centre Val de Loire, 88 boulevard Lahitolle, 18000 Bourges, France
Philippe Gillard
PRISME, IUT Bourges, 63, avenue de Lattre de Tassigny, 18000 Bourges, France

ABSTRACT

The pressure drop across metallic porous mediums is a critical element in cooling aerospace engineering applications. This paper presents a metamodel based on artificial neural networks (ANNs) for estimating the pressure drop through metallic porous media. The ANN is developed using experimental data obtained from an experimental bench, developed at PRISME Laboratory, which ensures the monitoring of temperature, pressure, and mass flow rate in stationary and transient conditions. For each case the gas pressure which crosses the metallic porous material is measured as a function of inlet gas pressure, gas mass flow rate, and temperature. The optimal feedforward ANN architecture with error backpropagation (BPNN) was determined by the cross-validation method. The ANN architecture having 35 hidden neurons gives the best choice. Comparing the modelled values by ANN with the experimental data indicates that the neural-network model provides accurate results. The performance of the ANN model is compared with a metamodelling method using the multilinear regression approximation.


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